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Increment of Earth Pressure due to Surcharge

Earth pressure increment in a soil or rock body due to surcharge is computed using the theory of elastic subspace (Boussinesq).

Earth pressure increment in the point inside the soil or rock body due to an infinite strip surcharge is obtained from the following scheme:

Computation of earth pressure due to infinite strip surcharge

A trapezoidal surcharge is automatically subdivided in the program into ten segments. Individual segments are treated as strip surcharges. The resulting earth pressure is a sum of partial surcharges from individual segments.

Stress increment due to concentrated surcharge is computed as follows:

Surcharge related to point "O"

where: